Beam lock for looms



may 13 19 24.

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A. E. RHOADES BEAM LOCK FOR LOOMS Filed Feb. 28, 1922 n1. Alongo E Rhoades V ATfys.

Patented May 13, 1924.

umren STATES ALONZO E. RHOADES, OF HOPEDALE,

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MASSACHUSETTS, 'ASSIGNOR TO DRAPER COR- BEAM LOCK FOR LOOMS.

Application filed February 28, 1922. Serial No. 539,971.

To all whom it may concern Be it known that I, ALoNzo E. RHoAnns,

a citizen of the United States, resident of Hopedale, county of Worcester, State v of Massachusetts, have invented an Improvement in Beam Locks for Looms, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to looms and is par ticularly concerned with the device known as a beam look by which the journals of the warp beam are held in their seats or journal hearings in the side frames of the loom.

The object of the invention is to provide a simple and. eiiicient type of beam lock which may readily be appliedto new looms or looms already built and which will not interfere in any way with the placing of the warp beam in position or removing it from the loom.

The object of the inventionis further to provide a beam lock of a self contained character which may readily be applied to the side frame of the loom and readily adjusted into proper position.

These and other objects and features of' the invention will appear more fully from the accompanying description and drawings and will be particularly pointed ont in the claims.

A simple and preferred formof the invention is shown in the accompanying drawing and as the particular construction of the loom and the warp beam forms no part of the present invention only so much of a loom as is necessary to a disclosure of the invention is illustrated. Futhermore as the construction is the same, except for the reversal of the parts at both sides of the loom, only the construction at one side, in this case the left-hand side, is illustrated.

In the drawings:

Figure 1 is a view in front elevation of a portion of the left-hand side frame and lefthand. end of a warp beam of a loom;

Fig. 2 is a sideelevation of the construc tion shown in Fig. 1 on a larger scale looking toward the inside of the loom frame and with the warp beam shaft in cross section and with the parts shown in retaining and locked position;

Fig. 3 is a view similar to Fig. 2 with the warp beam removed and with the parts shown in inoperative and unlocked position.

The side frame 1 of the loom is usually a cast iron structure comprising a plate or web with a front flange 2. The warp beam 3 is provided with a shaft 4- having journals 5 at each end. The loom frame at each side is provided with a seat'6 for the journal 5 of the warp beam and this seat is open at the front so that the warp beam which when loaded with the Warp is a very heavy structure can he slipped into place in the seats and when empty can be removed there-' from. A socket or recess 7 is usually provided on the loom frame in front of the seat 6, so that when the loom beam is hoisted. into position itmay rest on these sockets and then be transferred therefrom into posi tion in the seats 6. l I

The beam lockis provided to retain or hold the warp beam in position in its seat and must be ofsuch a character as not'to interfere with the placing of the warp beam in position and removing it from the seats.

In this invention the beam lock comprises i so essentially two members namely a journal retainer and a, locking dog. These parts are mounted on the loom framein proper position adjacent the journal seat and preferably and in order to provide a self contained structure this mounting is secured by mounting the two members upon a base 8 in the form of a plate which, in turn, is adjustably mounted on the loom frame. I

In the construction illustrated the plate 8 fits against the main portion or web of the side frame on its interior surface and is provided with lugs 9 to position it against the flange 2. This plate is recessed at a plurality of points as shown at 10 to provide counter-sinks for the heads'll of bolts 12.

These bolts pass through lateral slots 13 in the side frame of the loom and thus enable the plate to be securedrigidly in position to the side frame preferably with the lugs 9 in contact with the flange 2, but also enable the plate to be adjusted laterally if necessary.

A pin which serves to mount and guide the retainer is mounted for lateral adjustment upon and near the bottom of the plate 8. This pin is shown in the form of a bolt 14 provided with a bushing 15. This bolt passes through a lateral slot 16 in the plate and the bushing is mounted on the inside of the plate so that when the bolt is tightened up in its adjusted position the bushing 15 will be clamped against the plate and between it and a washer and thus permit free movement of the retainer on the bushing.

The retainer 17 is in the form of a plate provided with a longitudinal slot 18, pref erably curved laterally at 19 and this slot fits over the bushing 15 so that the retainer may move longitudinally and swing on the bushing. At its upper end the retainer plate is provided with a head 20 having a curved face to abut the journal 5 of the warp beam when in its seat.

The locking dog is in the form of a lever 21 pivoted at 22 on the plate, provided with an operating handle 23 and with a cam shaped head 2% adapted to engage the front edge of the retainer 17. A stop lu 25 is formed on the retainer of such ashape that when the retainer is in its operative or retaining position this stop will limit the movement of the locking dog in its locking position.

The parts are shown in inoperative position in Fig. 3. The locking dog 21 is there swung aside to open position and the retainer 17 is dropped to its lowermost position leaving the seat 6 and the socket 7v free to receive the journal of the warp beam. The warp beam is then placed in position with the journal 5 in its seat 6. The retainer is then moved upwardly and swung on the bushing 15 until the head 20 of the retainer abuts the journal of the warp beam as shown in Fig. 2. The locking dog is then swung downwardly until it engages the projection 25 and is brought into locking position as shown in Fig. 2. The parts are then in retaining position and the journal 5 of the warp beam is held and retained in its seat.

The lateral adjustment of the bolt 14: with the bushing 15 enables the parts readily to be adjusted to the required position after the plate 8 is secured to the loom frame.

The invention thus presents a simple and efficient form of beam lock comprising the minimum of parts and one which when the base plate is employed is of a self contained character readily attached to the loom. The parts when moved to inoperative position leave the passageway into and out of the journal seats free and open while the parts themselves are in such a position that they are not in danger of being hit and broken by the heavy warp beam.

Having thus described my invention what I claim as new, and desire to secure by Letters Patent, is:

1. A. beam lock for a loom comprising a pin mounted on the loom frame, a journal retainer having at one end a longitudinal slot engaging said pin and at the other end a head to engage the beam journal, the said retainer acting, when moved in one direction on said pin, to abut the journal with the face of the head and retain the journal in its seat and when moved in the other direction to permit the journal to be placed in and removed from its seat, and a locking dog movably mounted on the frame adjacent and co-operating with that edge of the retainer opposite the journal-engaging face of the head and acting when in locxing position to lock the retainer in journalretaining position.

2. A beam lock for a loom comprising the construction defined in claim 1, together witha stop on the retainer to limit the locking movement of the dog.

3. A beam loci: for a loom comprising a base, means for mounting the base on the loom frame adjacent the beam journal seat, the construction defined in claim 1, together with means for adjusting the pin laterally on the loom frame.

LL. A beam lock for a loom comprising a pin mounted on the loom frame, a journal retainer having at one end a longitudinal slot engaging said pin and at the other end a head to engage the beam journal, the said retainer acting, when moved in one direction on said pin, to abut the journal with the face of the head and retain the journal in its seat and when moved in the other direction to permit the journal to be placed in and removed from its seat, and a locking dog pivotal y mounted on the frame adjacent that edge of the retainer opposite the joui'nahengaging face of the head and acting when swung into locking engagement with said edge to lock the retainer in journal-retaining position.

5. A. beam lock for a loom comprising a base, means for mounting the base on the loom frame adjacent the beam journal seat, a pin mounted on the base, a. journal retainer having at one end a longitudinal slot engaging said pin and at the other end a head to engage the beam journal, the said retainer acting, when moved in one direction on said pin, to abut the journal with the face of the head and retain the journal in its seat and when moved in the other direction to permit the journal to be placed in and removed from its seat, and a locking dog movably mounted on the base adjacent and co-operating with that edge of the retainer opposite the journal-engaging face of the head and acting When in looking position to look the retainer in journalretaining position.

Y 6. A beam lock for a loom comprising the construction defined in claim 1, in Which the slot at its end further from the head is 10 laterally oflset.

In testimony whereof, I have signed my name to this specification. v

ALONZO E. RHOADES. 

